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https://hdl.handle.net/1959.11/17463
Title: | Effects of diet composition and beak trimming on the incidence of cannibalism in laying hens | Contributor(s): | Hartini, S (author); Choct, Mingan (author) ; Hinch, Geoffrey (author) ; Nolan, John V (author) | Publication Date: | 2001 | Handle Link: | https://hdl.handle.net/1959.11/17463 | Abstract: | A total of 2880 ISA Brown hens were used to investigate the effect of diet composition on the incidence of cannibalism in a 2 (dim and bright rearing) x 2 (with or without beak-trimming) x 4 (commercial diet, high-insoluble fibre diet, high-soluble fibre diet, high-soluble fibre diet plus enzyme) factorial experiment. Beak trimming had a profound effect (P<0.001) on cannibalism with mortality occurring predominantly in untrimmed birds. Total mortality for the trimmed birds was 0.14% and 0.77% for the pre-lay and early lay periods whereas it was 13.4% and 37.7% respectively for the untrimmed birds. Type of diet significantly affected cannibalism (P<0.01) with high-fibre diets appearing to be preventative against cannibalism. The highest mortality occurred in birds on the commercial diet, i.e. 13% and 29% for the pre-lay and early lay periods. Light intensity during rearing did not influence the incidence of cannibalism. The beak-trimmed birds had lower feed intakes than the non-trimmed birds (P<0.05). Diet also affected the feed intake (P<0.05), being lower (P<0.05) on the commercial diet than on the higher fibre diets. Egg production did not differ significantly between diets. | Publication Type: | Conference Publication | Conference Details: | APSS 2001: 13th Annual Australian Poultry Science Symposium, Sydney, Australia, 2001 | Source of Publication: | Proceedings of the Australian Poultry Science Symposium, v.13, p. 216-219 | Publisher: | University of Sydney | Place of Publication: | Sydney, Australia | ISSN: | 1034-6260 1034-3466 |
Fields of Research (FoR) 2008: | 070207 Humane Animal Treatment 070204 Animal Nutrition |
Socio-Economic Objective (SEO) 2008: | 830309 Poultry | Peer Reviewed: | Yes | HERDC Category Description: | E1 Refereed Scholarly Conference Publication | Publisher/associated links: | http://sydney.edu.au/vetscience/apss/documents/2001/APSS2001-hartini-pp216-219.pdf |
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Appears in Collections: | Conference Publication |
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